Interlocking snap-hook unit



FIG. 1 is a front elevational view of an interlocking snap-hook unit showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view taken in the direction of the arrows 3--3; and

FIG. 4 is a bottom plan view taken in the direction of the arrows 4--4. 

The ornamental design for an interlocking snap-hook unit, as shown and described. 